Introduction
Linux is freely-distributable open source operating system that runs on a number of hardware platforms. The Linux kernel was developed mainly by Linus Torvalds. Because it’s free, and because it runs on many platforms, including PCs and Macintoshes, Linux has become an extremely popular alternative to proprietary operating systems. Linux is in the Unix-like family of operating systems, with several major sub-categories including System V, BSD, and GNU/Linux. The name “Unix” is a trademark of The Open Group, but is commonly used to refer to the large set of operating systems which resemble the original UNIX. UNIX systems run on a wide variety of machine architectures. UNIX systems are used heavily as server systems in business, as well as workstations in academic and engineering environments. Linux and BSD are increasingly popular, and have made inroads on the desktop market as well.

Red Hat System Administration I provides a foundation for students wishing to become full-time Linux system administrators by introducing key command line concepts and other enterprise-level tools. These concepts are further developed in the follow-on course, Red Hat System Administration II (RH134).

Prerequisites:

There are no formal prerequisites for this course; however, previous operating system administration experience will be very beneficial.

Access the command line
Log in to a Linux system and run simple commands using the shell.
Manage files from the command line
Copy, move, create, delete, and organize files from the bash shell prompt.
Get help in Red Hat Enterprise Linux
Resolve problems by using online help systems and Red Hat support utilities.
Create, view, and edit text files
Create, view, and edit text files from command output or in an editor.
Manage local Linux users and groups
Manage local Linux users and groups, and administer local password policies.
Control access to files with Linux file system permissions
Set Linux file system permissions on files and interpret the security effects of different permission settings.
Monitor and manage Linux processes
Obtain information about the system, and control processes running on it.
Control services and daemons
Control and monitor network services and system daemons using systemd
Configure and secure OpenSSH service
Access and provide access to the command line on remote systems securely using OpenSSH
Analyze and store logs
Locate and accurately interpret relevant system log files for troubleshooting purposes.
Manage Red Hat Enterprise Linux networking
Configure basic IPv4 networking on Red Hat Enterprise Linux systems.
Archive and copy files between systems
Archive files and copy them from one system to another.
Install and update software packages
Download, install, update, and manage software packages from Red Hat and yum package repositories.
Access Linux file systems
Access and inspect existing file systems on a Red Hat Enterprise Linux system.
Use virtualized systems
Create and use Red Hat Enterprise Linux virtual machines with KVM and libvirt.
Comprehensive review
Practice and demonstrate the knowledge and skills learned in this course.

System Administration II (RH134)

This module goes deeper into enterprise Linux administration including file systems and partitioning, logical volumes, SELinux, firewalling, and troubleshooting. Attending both Red Hat System Administration I and Red Hat System Administration II can help you in your preparation for the Red Hat Certified System Administrator exam (EX200).

Outline for this course

Automate installation with Kickstart
Automate the installation of Red Hat Enterprise Linux systems with Kickstart.
Use regular expressions with grep
Write regular expressions that, when partnered with grep, will allow you to quickly isolate or locate content within text files.
Create and Edit text files with vim
Introduce the vim text editor, with which you can open, edit, and save text files.
Schedule future Linux tasks
Schedule tasks to automatically execute in the future.
Manage priority of Linux processes
Influence the relative priorities at which Linux processes run.
Control access to files with access control lists (ACL)
Manage file security using POSIX access control lists.
Manage SELinux security
Manage the Security Enhanced Linux (SELinux) behavior of a system to keep it secure in case of a network service compromise.
Connect to network-defined users and groups
Configure systems to use central identity management services.
Add disks, partitions, and file systems to a Linux system
Manage simple partitions and file systems.
Manage logical volume management (LVM) storage
Manage logical volumes from the command line.
Access networked attached storage with network file system (NFS)
Access (secure) NFS shares.
Access networked storage with SMB
Use autofs and the command line to mount and unmount SMB file systems.
Control and troubleshoot the Red Hat Enterprise Linux boot process
Limit network communication with firewall
Configure a basic firewall.
Comprehensive review
Practice and demonstrate knowledge and skills learned in this course.

Red Hat System Administration III (RH254)

Audience and prerequisites

Red Hat System Administration III is intended for experienced Linux administrators wishing to learn enterprise-level automation techniques through scripting, how to deploy and secure network services, and how to manage other key security features of Red Hat Enterprise Linux. Students in this course should have earned their RHCSA or have equivalent skills.

Prerequisites

RHCSA certification or equivalent experience . Must completed Red Hat System Administration I (RH124) , Red Hat System Administration II (RH134)
For candidates who have not earned their RHCSA certification, confirmation of the correct skills and knowledge can be obtained by passing the online skills assessment.

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